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World Congress on Intelligent control and Automation (WCICA)

作者： Miao-bo Dong Tie-jun Wu National laboratory for Industrial Control Technology Institute of Intelligent Systems and Decision Making University of Zhejiang Hangzhou China

This paper presents an idea for the research and developing of learning systems - componentialization. A learning system is to be componentialized into some blocks of special function, each cooperates with others by some standardized interfaces. The developing and research works of a learning system is to be assigned to specialists of different related domains. The object-oriented programming idea is naturally integrated. A learning system, a component of it, or even a problem, may be fit for the concept of an "object" in object-oriented programming and may be described by a C++ class. The programming language C++ helps make clear the idea of componentialization and describe the implementation of it. An example of an actual case of componentialized learning system is presented with successful application, to show its feasibility and efficiency.

关键词： Learning systems Object oriented programming Learning automata Neural networks Standardization Laboratories industrial control Intelligent systems Decision making Computer languages

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Cart subsystem to robot soccer based on phase-lock-loop technique

Cart subsystem to robot soccer based on phase-lock-loop tech...

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World Congress on Intelligent control and Automation (WCICA)

作者： Huang Bufu Xiong Rong Hu Yibo Zhou Ke Wu Mingguang Institute of System Engineering University of Zhejiang Hangzhou China National Laboratory of Industrial Control Technology University of Zhejiang Hangzhou China

Robot soccer is a hotspot in AI and Robot fields, and is an integrated system referring to multi fields, such as image processing, communication, automation control and optimize decision, as so on. Based on the brief introduction of the structure to robot soccer system, the cart subsystem is discussed in details. It is used PLL technique to realize precision DC motor timing. With Bluetooth communication technique, the cart subsystem can meet the system demand preferably.

关键词： Robots Robotics and automation Artificial intelligence Image processing Automatic control process control Communication system control control systems Phase locked loops DC motors

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Worst-case response time of aperiodic message in WorldFIP 15th

Worst-case response time of aperiodic message in WorldFIP

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15th World Congress of the International Federation of Automatic control, 2002

作者： Wang, Zhi Song, Ye-Qiong Yu, Hai-Bin Sun, Youxian National Laboratory of Industrial Control Technology Zhejiang University Hangzhou310027 China LORIA-ENSEM 2 av. de la Forêt de Haye Vandoeuvre-lès-Nancy54516 France Shenyang Institute of Automation Chinese Academy of Sciences Shenyang110016 China

ISBN: (纸本)9783902661746

This paper presents an integrated approach to analyse worst-case responding time (WCRT) of aperiodic message in WorldFIP for guaranteeing realtime requirement of distributed control system (DCS). Aperiodic message transmission within WorldFIP is a very complicated procedure because it is concerned with left time in a microcycle and must successively follow three different stages. To decrease pessimistic factors in WCRT of aperiodic message, we integrate the procedures of transmitting periodic message, identifying aperiodic request and transmitting aperiodic message together, and deduce a tightly bound for WCRT of aperiodic message. The result is validated by case study at last. Copyright © 2002 IFAC.

关键词： Distributed parameter control systems

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Ant colony optimization for intelligent scheduling

Ant colony optimization for intelligent scheduling

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World Congress on Intelligent control and Automation (WCICA)

作者： Xiao-rong Wang Tie-Jun Wu National Laboratory of Industrial Control Technology University of Zhejiang Hangzhou China Institute of Intelligent Systems & Decision Making University of Zhejiang Hangzhou China

A novel ant colony optimization algorithm was proposed for the scheduling problem in multiproduct chemical batch process, including a critical block based neighborhood structure in local search procedure to reduce the searching space of the problem, an ants-seed strategy, a stagnation step out mechanism and a pheromone trail limit mechanism in pheromone updating procedure to avoid stagnation. In the proposed algorithm, the pheromone acts as an indirect communication media among the ant colony. Guided by the pheromone, all the ants converge to good tours in the sense of probability. Comparisons with other well-performed algorithms on Taillard's benchmark problems (1993) show that our algorithm is more efficient and has stronger adaptability and robustness.

关键词： Ant colony optimization Job shop scheduling Scheduling algorithm Chemical processes Space technology processor scheduling Routing Laboratories industrial control Chemical technology

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Stability analysis for multi-class multi-queue single server system under polling table

Stability analysis for multi-class multi-queue single server...

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American control Conference (ACC)

作者： Zhi Wang Yeqiong Song Hai-bin Yu Youxian Sun National Laboratory of Industrial Control Technology University of Zhejiang Hangzhou China LORIA-ENSEM France Shenyang Institute of Automation Chinese Academy and Sciences Shenyang China

ISBN: (纸本)0780372980

We first propose and research a multi-class multi-queue system single server under polling table, which is more proper for modeling token-based communication systems. Then we deduce its common stability condition through analyzing the procedure of message service and message queue in this system. Further, we obtain stability conditions with services, such as limited and gated service, from the common stability condition. Besides, both queue stability and system stability are considered for some systems whose exact analyses have not been obtained yet. The analysis indicates that system stability and queue stability depend on the service styles.

关键词： Stability analysis Queueing analysis Application software industrial control Automation Message service Concrete Time sharing computer systems FDDI

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Characteristic of multi-class multi-queue system

Characteristic of multi-class multi-queue system

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IEEE Conference on control technology and Applications (CCTA)

作者： Zhi Wang Ye-qiong Song Hai-bin Yu Ji-ming Chen You-xian Sun National Laboratory of Industrial Control Technology Zhejiang University Hangzhou China LORIA-ENSEM Vandoeuvre-les-Nancy France Shenyang Institute of Automation Chinese Academy and Sciences Shenyang China

In this paper, we propose MCMQS (multi-class multi-queue system), which is effective in modeling and analyzing computer and communication systems, and we investigate its characteristics in detail. First, we deduce MCMQS's general system stability condition, and give its application in concrete types of services. Through analyzing the service procedure and number of waiting messages, we construct an embedded Markov chain and a generation function of waiting messages. Then, we derive an analytical expression of MCMQS's mean system operation period under the system stable condition. Further, we amend the analytical expression after considering the effect of the system stable condition. A numerical example verifies the theoretical analysis.

关键词： Stability analysis Communication systems Application software Sun industrial control Automation Concrete Embedded computing Token networks Switching systems

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Necessary and sufficient condition for the Schur stability of interval polynomial

Necessary and sufficient condition for the Schur stability o...

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IEEE Region 10 International Conference TENCON

作者： Lixin Gao Zonghai Sun Anke Xue Youxian Sun Department of Math Wenzhou Normal College Wenzhou China National Laboratory of Industrial Control Technology University of Zhejiang Hangzhou China Automation Department Hangzhou Institute of Electronics Engineering Hangzhou China

ISBN: (纸本)0780374908

In this paper, we first establish a sufficient condition for the Schur stability, then use that result to establish a necessary and sufficient condition for the robust Schur stability of interval polynomial, from which an algorithm is developed to determine the Schur stability of interval polynomial. Finally, a numerical example is given to demonstrate the applicability of our algorithm.

关键词： Sufficient conditions Polynomials Robust stability Uncertainty industrial control Automation Educational institutions Stability analysis Uncertain systems Transfer functions

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WORST-CASE RESPONSE TIME OF APERIODIC MESSAGE IN WORLDFIP

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IFAC Proceedings Volumes 2002年第1期35卷 419-424页

作者： Zhi WANG Ye_qiong SONG Hai-bin YU Youxian SUN National Laboratory of Industrial Control Technology Zhejiang University Hangzhou 310027 China LORIA–ENSEM 2 av. de la Forêt de Haye 54516 Vandoeuvre-lès-Nancy France Shenyang Institute of Automation Chinese Academy of Sciences Shenyang 110016 China

关键词： WorldFIP Field Communication Real-time Aperiodic message Worst-Case Responding Time

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Matrix bounds for the coupled algebraic Riccati equation

Matrix bounds for the coupled algebraic Riccati equation

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World Congress on Intelligent control and Automation (WCICA)

作者： Lixin Gao Anke Xue Youxian Sun Autom. Dept. Hangzhou Inst. of Electron. Eng. China Automation Department Hangzhou Institute of Electronics Engineering Hangzhou China National Laboratory of Industrial Control Technology University of Zhejiang Hangzhou China

In this note, we propose lower and upper matrix bounds for the positive semidefinite solution of the unified coupled algebraic Riccati equation (UCARE). Using the results of this note, computational algorithms to solv... 详细信息

关键词： Riccati equations control systems Linear matrix inequalities Automation Eigenvalues and eigenfunctions Algorithm design and analysis Laboratories industrial control industrial electronics Matrices

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A synthesis approach to Petri nets with combined place marking and transition firing constraint 6

A synthesis approach to Petri nets with combined place marki...

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6th European control Conference, ECC 2001

作者： Wu, Weimin Su, Hongye Chu, Jian Zhai, Haifeng National Laboratory of Industrial Control Technology Institute of Advanced Process Control Zhejiang University Hangzhou310027 China

ISBN: (纸本)9783952417362

A synthesis approach to a class of discrete event systems (DES) modeled by Petri nets (PN) is studied in this paper. The control constraint involves both of place (marking) and transition (firing). The basic idea behind the controller synthesis method is using the concept of finite capacity place to implement the control goal. The synthesis method has the advantage of indicating whether the constraint can be enforced due to the cause of deadlock. Furthermore, comparing with the reported methods, the presented synthesis can be applied to a more general case. © 2001 EUCA.

关键词： Petri nets

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